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zonefs fixes for 5.10-rc7

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A single patch in this pull request to fix a BIO and page reference
 leak when writing sequential zone files.
 
 Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
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Merge tag 'zonefs-5.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs

Pull zonefs fix from Damien Le Moal:
 "A single patch in this pull request to fix a BIO and page reference
  leak when writing sequential zone files"

* tag 'zonefs-5.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
  zonefs: fix page reference and BIO leak
This commit is contained in:
Linus Torvalds 2020-12-11 14:22:42 -08:00
commit 782598ecea
1 changed files with 8 additions and 6 deletions
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14
fs/zonefs/super.c
View file

@ -691,21 +691,23 @@ static ssize_t zonefs_file_dio_append(struct kiocb *iocb, struct iov_iter *from)
bio->bi_opf |= REQ_FUA;
ret = bio_iov_iter_get_pages(bio, from);
if (unlikely(ret)) {
bio_io_error(bio);
return ret;
}
if (unlikely(ret))
goto out_release;
size = bio->bi_iter.bi_size;
task_io_account_write(ret);
task_io_account_write(size);
if (iocb->ki_flags & IOCB_HIPRI)
bio_set_polled(bio, iocb);
ret = submit_bio_wait(bio);
zonefs_file_write_dio_end_io(iocb, size, ret, 0);
out_release:
bio_release_pages(bio, false);
bio_put(bio);
zonefs_file_write_dio_end_io(iocb, size, ret, 0);
if (ret >= 0) {
iocb->ki_pos += size;
return size;